I don't think so.  You're best bet would have been to develop the application from scratch using a platform like Appcelerator or Phone Gap.
The commenter makes an excellent point: the platforms are  fundamentally different.  A straight conversion of code won't work.  You  also have to convert framework/api calls and restructure all of your  UI.  Not only is the framework different, but the assumptions made by  the platform are totally different as well.
Possibly the best way to reuse the most code (this isn't necessarily  the easiest, keep in mind) would be to convert as much objective c code  into C or C++ and make use of the Android NDK.  You won't be able to  reuse any of the UI code, but you might be able to reuse a significant  amount of your application logic depending on what your application  does.